Injuries in Novice Participants during an Eight-Week Start up CrossFit Program—A Prospective Cohort Study

Background: Previously published studies have reported injury rates ranging from 0.74 to 3.3 per 1000 h of exposure in CrossFit participants. However, the existing body of evidence is mainly based on experienced participants; therefore, the injury incidence and injury rate within novice CrossFit participants remains relatively unknown. The aim of this study wasto investigate the injury incidence and injury rate among novice participants in an eight-week CrossFit program. Methods: This survey-based prospective cohort study included CrossFit Copenhagen’s novice members who began an eight-week, free-of-charge membership period. A questionnaire was distributed at baseline and at eight-week follow-up. Information about exposure was retrieved through the online booking system. Injury incidence, defined as proportion of participants who sustained an injury, and injury rates per 1000 h of exposure were calculated. Results: Among the 168 included participants, a total of 28 injuries (14.9%) were reported. The number of injured participants and total exposure time resulted in an injury rate per 1000 h of exposure of 9.5. Conclusions: Compared to the existing body of evidence, the findings in this study indicate that the risk of injuries is higher among novice participants than among experienced CrossFit participants.

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Epidemiology of Injuries in Elite Female Futsal Players: A Prospective Cohort Study

International Journal of Sports Medicine ◽

10.1055/a-1179-6280 ◽

2020 ◽

Vol 41 (12) ◽

pp. 885-890

Author(s):

Carlos Lago-Fuentes ◽

Alejandro Jiménez-Loaisa ◽

Alexis Padrón-Cabo ◽

Marcos Mecías Calvo ◽

Felipe García-Pinillos ◽

...

Keyword(s):

Cohort Study ◽

Prospective Cohort Study ◽

Exposure Time ◽

Prospective Cohort ◽

Injury Risk ◽

Injury Incidence ◽

Preventive Strategies ◽

Worst Case ◽

Moderate Severity

AbstractInjuries are one of the worst case scenarios for an athlete and a team. The aim of this study was to analyze the injury incidence, characteristics and burden among a cohort of elite female futsal players. A prospective cohort study was designed over a season. Eighty-nine players from seven elite female futsal teams were monitored during the whole season. Eight different variables were recorded when an injury happened, as well as exposure time. A total of 90 injuries were recorded so that 54 out of 89 players (60.6%) sustained an injury. The overall injury incidence was 5 injuries per 1000 h of futsal play exposure. Moderate injuries were the most frequent (1.7 injuries per 1000 h of futsal play exposure). The quadriceps and ankle were the regions where most injuries occurred. Contact injuries were more common during matches than training, and usually happened at the end of the season. Elite female futsal players are exposed to a substantial injury risk, especially on ankle and quadriceps with moderate severity, occurring at the end of the sessions, especially during matches. These results highlight the need of new preventive strategies to reduce the high injury incidence in female futsal players.

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The Relationship Between Workload and Non-Contact Musculoskeletal Injury in College Swimmers: A Prospective Cohort Study

Journal of Athletic Training ◽

10.4085/1062-6050-0135.21 ◽

2021 ◽

Author(s):

Travis R. Pollen ◽

David Ebaugh ◽

Meghan Warren ◽

Clare E. Milner ◽

Jennifer A. Taylor ◽

...

Keyword(s):

Cohort Study ◽

Prospective Cohort Study ◽

Prospective Cohort ◽

Injury Rate ◽

Musculoskeletal Injury ◽

Overuse Injuries ◽

College Level ◽

Division Iii ◽

Injury Rates ◽

The Relationship

ABSTRACT Context: Swimmers are known for high training loads and overuse injuries, but few studies have investigated the relationship between the two at the college level. Objective: To determine the association between workload and non-contact musculoskeletal injury in college swimmers. We hypothesized (1) higher overall workload (kilometers swum throughout the season) would be associated with increased odds of injury and (2) the ratio of the current week's (acute) workload divided by the current month's (chronic) workload (i.e., the acute:chronic workload ratio (ACWR)) would be more strongly associated with odds of injury than acute or chronic workloads alone. Design: Prospective cohort study. Setting: College natatorium. Patients or Other Participants: Thirty-seven Division III college swimmers. Main Outcome Measures: Logistic regression using generalized estimating equations was used to calculate odds ratios (OR) with 95% confidence intervals (CI) for injury relative to high workloads and high ACWRs. Injury rates for several ranges of workloads and ACWRs were also calculated. Results: Eleven participants (29.7%) sustained 12 injuries, with seven injuries occurring during the participants' winter training trip. Injury was associated with high acute workloads (OR = 27.1 [95% CI = 8.2, 89.8]) and high ACWRs (OR = 25.1 [95% CI = 7.7, 81.4]) but not high chronic workloads (OR = 2.6 [95% CI = 0.3, 20.0]) or overall workloads (OR = 1.00 [95% CI = 0.99, 1.01]). High acute workloads (>37.2 km/week) and high ACWRs (>1.56) increased injury rate from ≤1% to 15% and 14%, respectively, compared to all lower acute workloads and ACWRs. Conclusions: College swimmers can tolerate high workloads spread out over the season. However, caution should be used when prescribing high acute workloads and high ACWRs (e.g., winter training trip) due to increased odds of injury.

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Injuries in Collegiate Ladies Gaelic Footballers: A 2-Season Prospective Cohort Study

Journal of Sport Rehabilitation ◽

10.1123/jsr.2019-0468 ◽

2020 ◽

pp. 1-6

Author(s):

Siobhán O’Connor ◽

Conor Bruce ◽

Calvin Teahan ◽

Elaine McDermott ◽

Enda Whyte

Keyword(s):

Cohort Study ◽

Prospective Cohort Study ◽

Prospective Cohort ◽

Negative Impact ◽

Knee Injuries ◽

Injury Incidence ◽

Injury Rates ◽

Hamstring Injuries ◽

Incidence Proportion ◽

And Training

Context: Although Ladies Gaelic football is one of the most popular female sports in Ireland, just 2 previous injury surveillance studies have been completed, and both were retrospective in nature. Objective: To prospectively examine the injury incidence and injury profile in collegiate Ladies Gaelic football over 2 seasons. Design: Prospective cohort study. Setting: College. Patients (or Other Participants): Adult Ladies Gaelic footballers from one collegiate institution (season 1: n = 50, season 2: n = 82). Intervention(s): All time-loss injuries that occurred were recorded by certified athletic therapists and student-athletic therapists and trainers over 2 seasons. Main Outcome Measures: A standardized injury report form was used to record the injury onset, mechanism, location, nature, and outcome. Injury incidence proportion, repeat incidence proportion and total, match and training injury rates, and their 95% confidence intervals were calculated. The frequencies and proportions were also calculated. Results: The match and training injury rates were 42.48 and 7.93 injuries per 1000 hours, respectively. A low repeat incidence proportion per season was noted (11.7% and 0.0%). The injuries were predominantly acute (74.68%) and noncontact (66.25%), with hamstring injuries (21.52%) and strains (36.71%) the most frequent location and nature of injuries noted. Strains (104.92 d absent per 1000 h) and knee injuries (106.46 d absent per 1000 h) led to the greatest injury burden. Further investigations were not frequently required, with an X-ray and magnetic resonance imaging ordered in 8.00% and 6.67% of the cases, respectively. Surgery was completed following one injury. Conclusions: This is the first study to provide prospective injury data on Ladies Gaelic football. Priority needs to be given to preventing hamstring and knee injuries due to their occurrence and negative impact on player availability to play. Collegiate Ladies Gaelic football teams should be encouraged to implement an injury-prevention warm-up, such as the GAA15+, at training and matches.

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